If he didn't listen to what the female patient was saying, yup that could be. Or not and that's a misuse of the term. Hard to get context from one one-side tweet.
Why don't you send that youtuber a PM asking, "My female friend said *non-sense about periods*, should I correct her or would that be mansplaining", in a way that make it sound like you're genuinely concerned. We can make it a bet: if she says it is, I will post pro-Maduro stuff for a month, if she says it's not, you go and make an argument on the NK thread for why their nuke-tipped ICBM will be coming any time soon.
P.S. Also, you do love to cherry-pick, don't you. Let's look at all the other tweet from that clickbaity list of a link:
I once had a friend mansplain to my roommate how to ~correctly~ pronounce her own name bc he thought she was doing it wrong
at the racetrack—where I've worked for 14 years—men regularly try to explain to me how gambling works as I take their bets.
one time a guy explained to me how prescriptions work. like..."first the doctor decides which medication"
dude in workshop tried to tell me my description of orgasm was "gratuitous" because women's orgasms don't work like that 🙃
True story. I was WH waiting meet w/Pres. Obama. Man explains to me: "If you want to succeed you sd learn abt sports.
— Angela Blanchard (@CajunAngela) March 21, 2017
I'm a grown ass woman waitin to meet w POTUS because of my work & this knucklehead is giving me "how to get ahead" advice
— Angela Blanchard (@CajunAngela) March 21, 2017
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what makes story better is we are both standing next to Magic J. Who was giving me a big hug at that moment.
— Angela Blanchard (@CajunAngela) March 21, 2017
@brokeymcpoverty Recently? Office dude came in to move my phone, mocking me bc he thought I didn't know how. I said the cable's too short..
— ⚾MHarvey ⚾ (@mharvey816) March 21, 2017
.@brokeymcpoverty But as he's unplugging it to move, he stops and hollers "who puts in a cable this short?" I just smiled & sipped my cocoa.
my taxes are higher now than when I lived in Canada, but someone once tried to mansplain to me that that's not true.
— Kaleigh Rogers (@KaleighRogers) March 21, 2017
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oh! and any time I make a joke on Twitter, a man will, without fail, explain the joke back to me.
— Kaleigh Rogers (@KaleighRogers) March 21, 2017
.@brokeymcpoverty A man once explained street harassment to me: "Apparently, it's a thing now." Oh so it's a thing, thank you.
men regularly try to explain that there weren't women writing in the Middle Ages (I have a PhD in medieval women's writing)
how to correctly insert a tampon. no, this person was not a doctor.
.@brokeymcpoverty had a journalism student take over my lecture to explain to the class why the math I was doing was wrong. He was wrong.
that podcasts and audio content are kinda having a big moment. I've worked at wnyc for 19 years.
Menstruation. (Didn't believe I had my period because "it's not the 28th.")
How to ride a bike. While I'm on my bike. By a guy sitting in the SUV driving next to me.
the Welsh national anthem and the Welsh language (I am Welsh and speak it fluently, this guy was English)
One or two of those might be defendable if you want to be very generous to the guy, but most are... Well, good exemple of what mansplaining is I guess?